1154171 has 4 divisors (see below), whose sum is σ = 1194000. Its totient is φ = 1114344.

The previous prime is 1154159. The next prime is 1154173. The reversal of 1154171 is 1714511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1714511 = 1153 ⋅1487.

It is a cyclic number.

It is not a de Polignac number, because 1154171 - 2¹⁰ = 1153147 is a prime.

It is a super-2 number, since 2×1154171² = 2664221394482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1154173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19871 + ... + 19928.

It is an arithmetic number, because the mean of its divisors is an integer number (298500).

2^1154171 is an apocalyptic number.

1154171 is a deficient number, since it is larger than the sum of its proper divisors (39829).

1154171 is an equidigital number, since it uses as much as digits as its factorization.

1154171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39828.

The product of its digits is 140, while the sum is 20.

The square root of 1154171 is about 1074.3235080738. The cubic root of 1154171 is about 104.8954666385.

Adding to 1154171 its reverse (1714511), we get a palindrome (2868682).

The spelling of 1154171 in words is "one million, one hundred fifty-four thousand, one hundred seventy-one".